Slider does not work

[Ingo Gerth]

Steps to reproduce:
1. Click on sound menu. The sound menu opens.
2. Click on the slider. When clicking, the sound menu immediately closes again.
3. Click on sound menu again. Now the slider follows the mouse pointer without any user input (like clicking).
4. The process can be restarted by following 1 again.

See the attached video. This makes the sound menu very painful to use.

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: indicator-sound 0.7.6-0ubuntu1
ProcVersionSignature: Ubuntu 3.0.0-9.12-generic 3.0.3
Uname: Linux 3.0.0-9-generic i686
NonfreeKernelModules: nvidia
Architecture: i386
Date: Tue Aug 23 20:08:27 2011
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: indicator-sound
UpgradeStatus: Upgraded to oneiric on 2011-08-23 (0 days ago)